It's a natural instinct to make things pretty
Yayoi Kusama is an artist who has worked with one subject matter for her whole career- polka dots. She is actually one of the few artists who has been diagnosed as clinically insane for her entire career, and yet still has managed to hold together her audience. She lives in an asylum and she continually paints polka dots because it helps her keep her world from collapsing.
Although I'm not normally in love with her work, I just saw a friend post about her recent exhibit at Queensland Art Gallery and I LOVED IT.
In this exhibit she painted a room entirely white and then throughout the exposition she let children cover all the surfaces with stickers. The change that occurs in the space is so magical. It takes a completely sterile space and makes it into something interactive and beautiful.
A total testament to what can be created collaboratively. It makes me want to give more children stickers.